package com.smh.a08ApiDemo8;

public class Test {
    public static void main(String[] args) {
        Integer a =10000;
        System.out.println(a.toString());
        char[] chars= a.toString().toCharArray();
        for (int i = 0; i < chars.length; i++) {
            System.out.println(chars[i]);
        }

        Object obj = new Object();
        System.out.println(obj);
        System.out.println(obj.toString());

        //想要看到属性值,就重写tostring方法就行


    }

}
